Installation and Operations Manual

Installation and Operations Manual
AS3000 Engine/Generator Controller
Installation and Operation Manual
AS3-02075N
Revised 06-03
Section 75
00-02-0515
Please read the following information before installing. A visual inspection of this product for damage during shipping is recommended before mounting. It is your responsibility to have a qualified person install this unit and make sure it conforms to NEC
and local codes.
GENERAL INFORMATION
WARNING
BEFORE BEGINNING INSTALLATION OF THIS MURPHY PRODUCT
✔
✔
✔
✔
Disconnect all electrical power to the machine.
Make sure the machine cannot operate during installation.
Follow all safety warnings of the machine manufacturer.
Read and follow all installation instructions.
Description
The AS3000 provides control circuitry for the automatic or
manual starting and stopping of a diesel generator, pump
or other engine driven equipment. A basic AS3000 system
comprises two modules:User Interface Module – mounted in the front of a control panel.
The module consists of 3 operator control keys, LEDs for status and
fault indication, and electrical connectors for front-of-panel equipment.
Panel Interface Module – designed for DIN rail mounting
inside the panel. This module contains the main control circuitry
and terminals for connection to the engine wiring harness.
The two modules are connected by a single communications lead.
The two-part design may be used to reduce wiring between engine
cabling and front-of-panel user controls.
Specifications
Power supply:
Continuous voltage range: 8 – 35 VDC
Brown out voltage: 5 VDC for 2 secs (recovery to 8V).
Blackout voltage: 0V for 50mS (from 10V, recovery to 5V)
Overvoltage withstand: 50 VDC for 5 seconds (to SAEJ1810
load dump immunity)
Reverse voltage withstand: 100 VDC continuous
Current consumption (standby): 50mA
Current consumption (max): 500mA (plus output loads)
WARNING: Do not bundle AC and DC wiring together. They must be
separated by 2 inches, ideally, and require separate conduit runs.
AC Inputs
Magnetic pickup: 3 – 60 VAC, 200 Hz – 10 kHz.
Generator AC: 80 - 600 VAC (L-L or L-N), 50/60 Hz.
Outputs
Fuel: positive DC (transistor), 5A max.
Crank, preheat: positive DC (transistor), 2A max.
Common alarm, fault lockout: negative DC (transistor), 300mA max.
Generator Hz. Meter: 0 - 1mA (= 45 - 65 Hz) into 50 Ohm moving coil meter.
Physical
Dimensions: see “System Overview” on page 2.
Operating temperature: 14 to 149°F (-10 to +65°C).
Relative humidity: 95% @ 140°F (60 °C).
Environmental protection: AS3000 front: IP65, NEMA4.
Back of User Interface and Panel interface require weather-proof
enclosures for outdoor use.
Vibration: ISO 88528 pt.9, & 3 axis 3g.
Weight: AS3000 User Interface: approx. 9 oz. (250g).
AS300 Panel Interface: approx. 6 oz. (160g).
Shipping Weight: 1 lb. 4 oz. (554 g.).
Shipping Dimensions: 7-3/8 x 5 x 3-1/8 inch. (187 x 127 x 79 mm.).
DC Inputs
Oil pressure, coolant temp,
auxiliary and charger faults: closed to negative DC (±3V) on fault.
Remote start positive: open from positive DC to start.
Remote start negative: close to negative DC (±3V) to start.
Lamp test: close to negative DC (±3V) to activate.
DC input protection: ±50 VDC max.
Installation AS3-02075N page 1 of 8
GENERAL INFORMATION continued
Anti-static Precautions
Unpacking
The AS3000 features sensitive electronic components that may be damaged by static discharge. It is recommend that anti-static precautions
are observed when storing, unpacking and handling the AS3000:
● Store AS3000 modules in the packing provided.
● Use grounded wrist straps and anti-static mats when handling and
during installation.
● Handle each module at the edges, using the plastic mouldings.
Where possible, avoid physical contact with exposed circuit boards
and electrical connectors.
Each AS3000 system includes the following components:
● Panel Interface module (41.05.0002), with 9
circuit board links for setting operating options.
● User Interface (front of panel) module (41.05.0001/black;
41.05.0003/white), complete with fixing clamp and nuts. There are two
standard variations:
SYSTEM OVERVIEW
AS3000 front view
AS3000 back view
AS3000 Panel Interface
International symbol and US English text legends shown
depth= 1.9 in.
(48 mm)
3.8 in. (96mm)
REMOTE START
DEMAND
OVERCRANK
ENGINE RUNNING
LOW OIL
PRESSURE
BATTERY
CHARGER FAIL
HIGH ENGINE
TEMPERATURE
PLANT FAIL/
AUXILIARY INPUT
OVERSPEED
31 32 33 34 35 36 37 38
3.8 in.
(96mm)
Mounting
clamp
AUTO
OFF/
STOP
MANUAL
START
Operator control keys:
OFF-STOP
(reset)
MANUAL mode
(+ amber LED)
AUTO
AUTO mode
(+ green LED)
9
8
7
6
5
4
3
2
1
AUTO
START
Status/fault LED indicators x8
- Remote start/Mains fail
- Engine running
- Charge fault
- Auxiliary / plant fault
- Start fail/overcrank fault
- Low oil pressure fault
- High engine temp fault
- Overspeed fault
1
2
Communication lead
Terminals 31 - 39
(1/4" blades)
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19
20
3.67 in.(93 mm)
6.1 in. (154 mm)
21
Operating option links, for setting:
- crank/rest time (5, 10 or 15 seconds)
- preheat time (0, 5, 10 or 15 seconds)
- crank disconnect speed (40% or 10%)
- engine cool time (0 or 5 minutes)
- number of crank attempts (1, 3 or 6)
- loss of speed (warning or shutdown)
Terminals 1 - 21
(1/4" blades)
depth= 1.1 in.
(28 mm)
WARNING: Do not bundle AC and DC wiring together. They must be
separated by 2 inches, ideally, and require separate conduit runs.
MOUNTING
AS3000 User Interface module
AS3000 Panel Interface module
The AS3000 is mounted in
the front of a control panel
through a 92mm square
(DIN standard) cut-out:
3.8
inch
3.8 in
• Remove the two fixing nuts
.
and clamp at the module rear.
A
• From the panel front, insert
A
the unit into the cut-out (A).
• Refit the mounting clamp
B
C
C
B
A
C
B
(B) and nuts (C). Before
fully tightening the nuts,
ensure that the unit and
its integral sealing gasket are
squarely located in the cut-out.
The module extends 1.1 in.
(28 mm) behind the panel front,
but a minimum of 2 inch (51mm)
should typically be allowed where
(optional) panel wiring is used.
D
D
Installation AS3-02075N page 2 of 8
E
The plastic mouldings on either side
of the AS3000 are designed to allow
snap- mounting to a control panel
DIN rail (e.g. Murphy part number:
40 -05 - 0474 (7 inch [178 mm] DIN rail).
B • Locate each moulding on to
the top edge of the DIN rail (A).
• Push the edges of the
module (B) so that the
lower part of the moulding
snaps on to the lower
edge of the DIN rail (C).
• To release the module,
apply pressure (e.g. with
E
fingers or a levered
screwdriver) to the flexible
section of both mouldings
(D), pull the module
outwards (E) and off the rail.
FUNCTION SETTINGS
PCB Links
The AS3000 has a number of operating options, set by 9 links on the
AS3000 circuit board.
Comms link
to AS3000
Operating
Option Links
Function
Crank/rest time
9
8
7
6
5
4
3
2
1
Links Option
Factory
Default
= link fitted
= link removed
= link may be fitted or removed
1
2
10 secs
15 secs
5 secs
Preheat time
3
4
Terminals 1 - 21
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
20
21
The PCB links must be set correctly before the AS3000 is connected
or used.
Crank disconnect 5
speed
Engine cool time
40% of nominal
10% of nominal
6
0 minutes
5 minutes
WARNING: Incorrect settings may cause malfunction or
damage to engine and plant.
WARNING: We recommend that anti-static precautions (as
detailed above) are observed during the fitting or removal of
PCB links.
Add or remove links as shown in the table opposite. Note that standard
units are supplied with all links fitted.
Number of
crank attempts
7
Loss of speed
signal response
9
0 secs (no preheat)
5 secs
10 secs
15 secs
8
3 attempts
6 attempts
1 attempt
shutdown
warning (alarm) only
ELECTRICAL CONNECTION
WARNING: DANGER OF INJURY OR DEATH. For certain operating configurations, the AS3000 includes connection of high voltage AC supplies. Before connection, disconnect or handling of the AS3000, ensure that all
AC and DC power supplies are turned off and locked out. Connection to or disconnection from live wiring can
DANGER ! also cause damage to AS3000 internal components. Do not bundle AC and DC wiring together. They must be
HIGH VOLTS separated by 2 inches, ideally, and require separate conduit runs.
General
Electrical connection on both AS3000 modules is via 1/4 inch
(6.3mm) blade terminals. Murphy makes the following general
connection recommendations:
Battery Chargers
Some battery chargers feature
significant ripple and switching
noise on the DC output. This
electrical interference can be
imposed on the panel power
supply and control lines, with
the potential to cause faulty
operation of (and in extreme
cases damage to) electronic
control equipment.
Minimize the effects of
charger output noise by using
separate wiring 1) between
charger output and battery
terminals and 2) between
battery terminals and panel
DC supply rail.
Control panel
Autostart
other
controls
+
charger
battery
Control panel
Autostart
other
controls
charger
External Slave Relays are a
Positive outputs
recommended connection on all outputs
+
(as shown right), either to achieve the
+
required load switching capability, or to
reduce wear and tear on internal relay
Autostart
RL1
contacts.
Slave Relays and
Solenoid Coils will naturally emit
voltage spikes when de-energising, with
the potential to cause mis-operation of, or Negative outputs:+
damage to, electronic equipment.
Suppress relay and solenoid coils at
source, using the manufacturer’s recomAutostart
RL1
mended suppression network. DC coiled
relays may also be suppressed using a
reversed biased flywheel diode as
shown right.
A typical, full wiring diagram for the AS3000 is shown on page 4.
+
battery
Installation AS3-02075N page 3 of 8
ELECTRICAL CONNECTION continued
Electrical Connection, AS3000
Panel Interface
Typical Wiring Diagram
DC panel
supply
+ –
WARNING: Do not bundle AC and DC wiring together. They must be
separated by 2 inches, ideally, and require separate conduit runs.
negative DC power supply
1
positive DC power supply
2
Connection is via 6.3mm (1/4”) blade terminals on the main
circuit board, numbered 1 – 21:
6
7
8
9
10
11
12
13
14
Charge Alternator D+ or WL
Pin 6 may be connected to the D+ or WL (warning lamp) terminal
of an engine driven charge alternator. The AS3000 provides the
necessary current required to excite the alternator, and measures
the D+/WL terminal voltage.
Once the engine is running and the fault lockout time has expired,
the front facia charge fail LED will light if the D+/WL voltage
falls below approx. 9.5 volts.
Fault Lockout Output
Common Alarm Output
Both these outputs are transistor based, providing a negative DC
output when active. The outputs are able to sink up to 300mA
max., and are typically used to drive a panel relay (see page 3).
The fault lockout output activates after the fault lockout
time has expired (15 seconds after an engine start). The common
alarm output activates during fault conditions.
Remote Start Input (negative)
With the AS3000 in Auto mode, close this input to battery negative
to initiate an automatic engine start. Make the input open circuit to
return the system to standby mode. See also pin 16 (remote start
input positive).
Low Oil Pressure (LOP) Input
Charge Fail Input
High Engine Temperature (HET) Input
Auxiliary Fault/Plant Fail Input
Overspeed Input
These inputs are used with remote fault switches/contacts to trigger
fault conditions. To trigger a fault, each input must be closed to
battery negative DC.
While the engine is running, an active Low Oil Pressure, High
5
RL
7
crank output: positive DC, 2A max.
fuel output: positive DC, 5A max.
RL
charge alternator D+/WL
6
AS3000
Panel Interface Module
3
4
5
Negative DC power supply
Positive DC power supply
The power supply for the AS3000. Steady state operating voltage
range is 8 – 35 VDC. See specification for high and low voltage
withstand thresholds.
Preheat Output
Crank Output
Fuel Output
Connect these (transistor) outputs to engine preheat, starter motor
and fuel circuits. Each terminal gives a positive DC output when
active.
The fuel output is designed for use with energized to run fuel
solenoids, and is rated to 5 Amps. The crank and preheat outputs
are each rated to 2 Amps.
Slave relays with suppressed coils (diodes across them), should be
wired between each output and battery negative, with the slave relay
contacts used to drive fuel/starter solenoids and preheat circuits.
preheat output: positive DC, 2A max.
RL
4
fault lockout output
RL
8
RL
common alarm output
negative DC,
300mA max.
(semiconductor)
9
remote start negative
10
low oil pressure fault
11
charger fail fault
12
high engine temp fault
13
auxiliary fault
14
overspeed fault
15
crank disconnect
16
remote start positive input, open to activate
17
magnetic pickup signal low / -
18
magnetic pickup shield / screen 3 - 60 V
0 - 10 kHz
magnetic pickup signal high / +
19
Inputs close
to negative DC
to activate
OR
20
generator AC speed input,
50 / 60 Hz, 90 - 600 VAC rms
21
comms
31
AS3000
User Interface/
Display Module
1
2
3
RL
32
common alarm, negative DC, 300mA max.
33
enable keyswitch
(link, jumper if not used)
34
high engine temp fault
35
lamp test
36
low oil pressure fault
inputs close
to negative DC
to activate
37
auxilary fault
38
AC Hz. meter output, 0 - 1mA (= 45 - 65 Hz)
into 50 Ohm moving coil meter
Engine Temperature or Auxiliary Fault input will cause an immediate engine shutdown. Oil pressure and engine temperature inputs
do not operate while the engine is stationary, during engine starting
or until the fault lockout timer has expired (15 seconds after engine
starting). The Auxiliary fault input may be activated at any time, but
acts as ‘indication only’ while the engine is stationary or cranking.
The Overspeed input allows an immediate shutdown to be externally
triggered at any point after engine starting. This input is provided in
addition to the on-board overspeed measurement and tripping.
The Charger Fail input may be activated at any time, causing the
charge fail LED to light. The AS3000 does not shut down the
engine or inhibit an engine start.
All the fault conditions above will cause the operation
of the common alarm outputs (pins 8 and 31).
Note that some of the above inputs are duplicated on the user interface module, allowing optional, more convenient wiring to front
facia mounting equipment (e.g. Murphy SWICHGAGE®). See
AS3000 connection (page 5) for full details.
Installation AS3-02075N page 4 of 8
ELECTRICAL CONNECTION continued
15 Crank Disconnect Input
The AS3000 may be configured to measure engine speed using a
magnetic pickup or AC Hz. signal, and to disconnect cranking once
the engine is running.
Alternatively, pin 15 may be used to trigger a crank release from an
external contact (e.g. a remote speed trip). To disconnect the
starter, connect pin 15 to battery negative.
16 Remote Start Input (positive)
With the AS3000 in Auto mode, make this input open circuit to initiate an automatic engine start. To return the system to standby
mode, close this input to battery positive DC.
See also pin 9 (remote start input negative).
17 Magnetic Pickup Speed input (negative)
18 Magnetic Pickup Speed Input (screen/shield)
19 Magnetic Pickup Speed Input (positive)
The signal from an engine mounted magnetic pickup may be used to
sense engine speed. The pickup negative and positive output terminals
should be respectively connected to pins 17 and 19. (Note: the polarity of connection is not usually important if the pickup head is isolated
from the pickup body and ground.) The connection between pickup
and AS3000 should use a two-core and screen cable. The cable screen
should be connected at the AS3000 end only, to pin 18.
If pins 17 – 19 are connected, pins 20 and 21 (generator AC speed
sensing) must be left open circuit.
Note that the speed sensing circuit must be calibrated before the
AS3000 can be used - see ‘speed calibration’ on page 6.
20 AC Speed Input
21 AC Speed Input
WARNING: HIGH VOLTAGE – DANGER OF INJURY
OR DEATH.
●
●
Ensure that all AC power supplies are turned off
before connection, disconnection or handling.
Use fully insulated wiring connectors on these
terminals.
Do not bundle AC and DC wiring together. They must be separated
by 2 inches, ideally, and require separate conduit runs.
These terminals allow measurement of engine speed using a generator AC signal (nominal 50 or 60 Hz).
The input may be connected to generator line to neutral or line to
line voltage, maximum 600 VAC.
If pins 20 and 21 are connected, pins 17, 18 and 19 (magnetic pickup speed sensing) must be left open circuit.
Before the AS3000 can be used, this circuit must be correctly calibrated - see ‘Speed Calibration’ on page 6.
Electrical Connection, AS3000
User Interface
WARNING: Do not bundle AC and DC wiring together. They must be
separated by 2 inches, ideally, and require separate conduit runs.
Connection to the User Interface module is via 8 blade terminals (1/4 “ /
6.3 mm). Some of the terminals duplicate features found on the AS3000
Panel Interface unit, allowing optional, more convenient connection to
local, front-of-panel equipment.
31 Common Alarm Output
Connection and operation is identical to AS3000 pin 8.
32 Keyswitch
33 Keyswitch
Use these terminals to restrict AS3000 operation via a Keyswitch
or other remote contact. The system will only operate while these
pins are connected.
If this feature is not used, connect pins 32 and 33 using the wire
link (jumper) supplied.
34 High Engine Temperature Fault Input
36 Low Oil Pressure Fault Input
37 Auxiliary Fault/Plant Fail Input
Operation is identical to AS3000 Panel Interface unit inputs 12, 10
and 13. The fault inputs may be used instead of, or in addition to, the
Panel Interface inputs, e.g. where front of panel Murphy SWICHGAGE® units are used for pressure and temperature monitoring.
35 Lamp Test
Close this input to battery negative to light all the front facia LEDs.
This input is typically used with a front of panel, momentary action
push button.
38 Analog Speed Output, 0 - 1mA
When engine speed is measured from the generator AC (via pins 20 and
21), pin 38 may be used to drive a suitably scaled ‘generator Hz.’ meter.
The meter must have a 0 – 1mA DC movement, with scale 45 – 65
Hz. For greatest accuracy, use a meter with a 50 Ohm nominal coil
impedance.
Connect the meter between pin 38 and battery negative.
Communication Link
Communication between AS3000 User Interface and AS3000 Panel
Interface modules is via a short 1.3 meter lead.
Electrical connection is via 5 male pin headers (on each module) and
female connector blocks (at each end of the lead).
The AS3000 User Interface is normally supplied with the communication lead pre-connected. If the lead needs to be disconnected, ensure that
the lead connector block is correctly orientated during reconnection: the
correct orientation is shown on page 2, and on the product label.
Note: incorrect connection will not damage the AS3000, but will result
in non-operation.
At the AS3000 Panel Interface end, both lead connector block and male
pins are polarised, ensuring correct connection. The correct orientation
is again shown on page 2 and on the product labelling.
Installation AS3-02075N page 5 of 8
SPEED CALIBRATION
Communication Link
Before use, the AS3000 must be set up (calibrated) to correctly perform
two functions related to engine speed:
a) automatic release of the engine starter motor.
b) automatic shutdown on engine overspeed.
WARNING: Incorrect speed calibration may cause faulty
operation of the above functions, wih potential damage to
engine and plant.
The AS3000 can measure engine speed through one of two circuits:
pins 17, 18 and 19 allow measurement using an (engine mounted) magnetic pickup speed transducer; pins 20 and 21 (on generator applications) allow measurement of the generator AC frequency. Alternatively,
the AS3000 can be set so that crank release and/or overspeed trip are
initiated by remote contacts (via pins 15 and 14 respectively).
Calibration/setup is typically carried out after connection into the control panel, during engine commissioning. Alternatively, e.g. when an
engine is not available, calibration may be performed ‘on the bench’, by
simulating the speed signal (either magnetic pickup or generator AC).
Entering Calibration Mode
●
Connect the AS3000 as for normal operation.
At minimum, this must include:◆ The DC power supply
◆
The enable Keyswitch/link (pins 32 and 33)
The magnetic pickup or generator AC circuit (assuming these
are to be used)
Press then release the MANUAL/ key.
◆
●
Allow the engine to run up to normal speed, adjusting the governor
control if necessary. If a magnetic pickup or generator AC speed
sensing is used, check that the AS3000 ENGINE RUNNING/ LED
is flashing.
● Press and release the MANUAL/ key. This sets the crank release
speed to 10% or 40% of the running speed (depending on the setting
of link 5). Note: If no speed signal is present (if the ENGINE
RUNNING/ LED is not flashing) when the MANUAL/ key is
pressed, the AS3000 defaults to give a crank release by use of
external contact (using pin 15).
Once the crank disconnect speed has been set, the ENGINE RUNNING/ LED lights continuously, and the OVERSPEED/ LED flashes to
indicate…
●
Overspeed Trip Set Set-up
In this set-up phase, both MANUAL/ key and OVERSPEED/ LEDs
flash, and the ENGINE RUNNING/ LED is lit continuously. With the
engine running at normal speed:
● Press and release the MANUAL/ key. This sets the overspeed trip to
give an immediate shutdown at 115% of the measured (nominal)
speed, and a 3 second delayed shutdown at 110% nominal. If no
speed signal is present when the MANUAL/ key is pressed, the
overspeed trip is set to operate using the overspeed input (pin 14).
After the overspeed trip has been set, the AS3000 automatically stops
the engine; the engine running and overspeed LEDs will go out, but the
manual LED should stay flashing.
To exit set up mode and save the calibration changes, press OFF-STOP.
If OFF-STOP/ is pressed at any stage before this, the AS3000 stops the
engine and reverts to the settings that were held prior to entering calibration mode.
If the speed calibration has not been previously set, the AS3000 automatically enters calibration mode, indicated by a flashing amber manual
LED - continue setting up from the ‘crank disconnected set-up’ heading
below.
If the speed calibration has already been set, the manual LED lights
continuously (normal manual mode operation).
To recalibrate the unit, e.g. for another type of engine, enter calibration
mode as follows:
● Press and hold the OFF-STOP/ key
●
Press and hold the MANUAL/ key
●
Release the OFF-STOP/ key, but continue to hold the MANUAL/
key for around 15 seconds until the green (auto) LED lights.
Release the MANUAL/ key: the green (auto) LED should go out,
leaving the flashing amber manual LED.
●
Crank Disconnect Set Set-up
When calibration mode is selected (amber Manual LED flashing), automatic crank disconnection is inhibited.
Start the engine as follows:
● Press and hold the MANUAL/ key. If a preheat option has been set,
the preheat output will operate for the selected time before engine
cranking. Maintain the MANUAL/ key through the preheat time and
after the engine cranks.
● Release the MANUAL/ key when the engine fires.
Installation AS3-02075N page 6 of 8
OPERATION
Operation
User control of the AS3000 and engine is through the three front facia
operating mode keys:
OFF-STOP (reset)/
Press this key to power down the AS3000, stop the engine and reset
latching shutdown faults.
AUTO START/ AUTO
Press this key to select Auto mode. A green LED lights continuously
when Auto this mode is selected.
In Auto mode, the AS3000 will automatically preheat, start, run and
stop the engine in response to the remote start contact(s) - see ‘electrical
connection’ above for pins 9 and 16. The AS3000 User Interface face
plate (remote start/mains fail) LED lights to indicate when the engine is
‘on demand’.
MANUAL START/
Use this key to give manual mode control over engine starting and running.
If the engine is stationary – i.e. if the AS3000 is in Off-stop or Auto
standby modes – use this key to start the engine:
● Press and immediately release the MANUAL/ key.
The AS3000 adopts manual mode (indicated by the amber LED),
turns on the engine fuel, but (provided the key is released
immediately) does not crank the engine.
● To (preheat and) crank the engine, press and hold the MANUAL/
key for at least 1 second. If a timed preheat option has been selected,
the preheat output will activate.
At the end of the preheat time, or if preheat has been turned off, the
start output will operate. The start and preheat outputs will only
operate while the MANUAL/ key is held down and the engine speed
is below the precalibrated crank release level. If the key is released,
or if the engine speed rises above the automatic crank release level,
the AS3000 disconnects the starter (and preheat), but maintains the
engine fuel.
If the AS3000 is already running the engine in Auto mode, the MANUAL/ key allows the operator to maintain engine running indefinitely:● Press and release the MANUAL/ key; the amber manual mode LED
will light. The AS3000 will then ignore the state of the remote start
inputs and will run the engine continuously.
To stop the engine, the operator has 2 options:
● Press the OFF-STOP/ key. The AS3000 will stop the engine
immediately.
● Press the AUTO/ key. Engine stopping (and restarting) then reverts
to the control of the remote start inputs.
Responding to Faults
In Auto and Manual modes, the AS3000 continuously monitors for
engine and plant faults.
The operator is typically warned of faults by use of an audible alarm,
driven from the AS3000 ‘common alarm’ output (see ‘electrical connection’ details for pins 8 and 31). Once alerted, the operator can identify
fault and system status using the front facia LEDs:
REMOTE START (mains fail) input active
ENGINE RUNNING
CHARGE FAIL fault
PLANT FAIL / AUXILIARY INPUT fault
OVERCRANK (start fail) fault
LOW OIL PRESSURE fault
HIGH ENGINE TEMPERATURE fault
OVERSPEED fault. Flashing LED indicates
speed signal failure
Shutdown Faults
Start fail/overcrank, low oil pressure, high engine temperature and overspeed alarms cause an immediate shutdown and/or lockout of the
engine. These faults operate on a latching, ‘first-out’ indicated basis.
Overspeed monitoring begins immediately after crank release, while
Low Oil Pressure and High Engine Temperature faults do not operate
until the ‘fault lock-out’ time has expired (15 seconds after crank
release).
The Auxiliary fault input may be triggered at any time. After the fault
lockout time, the input acts as part of the first-out alarm system, causing
an engine shutdown. While the engine is stationary and during starting,
an active plant fail input causes ‘indication only’ on the front facia.
In the event of a shutdown fault, the operator should:
●
Make a note of the indicated fault LEDs
●
To reset the fault, press the OFF-STOP/ key
●
Investigate the cause of fault.
The AS3000 should not be returned to Auto or Manual modes until the
cause of shutdown has been found and corrected.
Warning Only Faults
A lit CHARGE FAIL/ LED indicates a battery/DC charging fault. Two
inputs allow for the monitoring of an engine driven charge alternator
(pin 6) and/or an AC powered battery charger (pin 11). For further operating details, please refer to ‘electrical connection’ above.
Following a charge fail fault, the AS3000 does not shut down the
engine, but does activate its Common Alarm outputs.
The charge fail fault is non-latching: the charge fail LED goes out and
the Common Alarm outputs de-activate as soon as the fault clears.
Installation AS3-02075N page 7 of 8
OPERATION continued
Speed Signal Fault
Once the fault lockout time has expired, and provided magnetic pickup
or generator AC speed measurement has been set, the AS3000 will continually check that an engine speed signal is present.
If the speed signal fails when the engine is running, both START FAIL/
and OVERSPEED/ LEDs will flash.
Use link 9 on the AS3000 Panel Interface circuit board to set whether
this fault results in a ‘shutdown’ or ‘warning only’ response.
Inter-Module Communication Fault
If all LEDs on the AS3000 User Interface flash momentarily once every
2 to 3 seconds, this indicates a communication problem between the
AS3000 Panel Interface and AS3000 User Interface modules: check that
the interconnecting lead is correctly seated and oriented.
Warranty
A two-year warranty on materials and workmanship is given
with this FWMurphy product.
A copy of the warranty may be viewed or printed by going to
www.fwmurphy.com/warranty.asp.
MURPHY SWITCH OF CALIFORNIA
41343 12th Street West
Palmdale, California 93551-1442; USA
(661) 272-4700 fax (661) 947-7570
e-mail [email protected]
www.murphyswitch.com
GI
D
MURPHY DE MEXICO, S.A. DE C.V.
Blvd. Antonio Rocha Cordero 300, Fracción del Aguaje
San Luis Potosí, S.L.P.; México 78384
+52-444-8206264 fax +52-444-8206336
Villahermosa Office +52-993-3162117
e-mail [email protected]
www.murphymex.com.mx
MACQUARRIE CORPORATION
1620 Hume Highway
Campbellfield, Vic 3061; Australia
+61 3 9358-5555 fax +61 3 9358-5558
e-mail [email protected]
E
P.O. Box 470248
Tulsa, Oklahoma 74147 USA
(918) 317-4100
fax (918) 317-4266
e-mail [email protected]
www.fwmurphy.com
FRANK W. MURPHY, LTD.
Church Rd.; Laverstock, Salisbury SP1 1QZ; U.K.
+44 1722 410055 fax +44 1722 410088
e-mail [email protected]
www.fwmurphy.co.uk
E
FWMurphy
CONTROL SYSTEMS & SERVICES DIVISION
P.O. Box 1819; Rosenberg, Texas 77471; USA
(281) 633-4500 fax (281) 633-4588
e-mail [email protected]
STER
FM 28221
0 FM 29422
In order to consistently bring you the highest quality, full featured products, we reserve the right to change our specifications and designs at any time.
Printed in U.S.A.
Installation AS3-02075N page 8 of 8
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertisement